As one of Oral-B’s premium replacement toothbrush heads, the FlossAction features specifically engineered MicroPulse bristles that loosen plaque to remove up to 100% more plaque vs. a regular manual toothbrush. Oral-B’s improved FlossAction toothbrush heads are developed with CleanMaximiser technology that turns green bristles yellow for optimal brush head performance and the best clean. The unique round brush head and bristles reach deep between teeth for optimal tooth coverage. Compatible with all Oral-B handles except Pulsonic & iO. Features: With CleanMaximiser technology, green bristles turn yellow when it is time to replace your brush head Up to 100% more plaque removal and healthier gums vs. a regular manual toothbrush Oral-B’s best for deep interdental cleaning (excluding Oral-B iO) With MicroPulse bristles which loosens plaque and provides optimal tooth coverage Compatible with all Oral-B handles except Pulsonic & iO From the #1 brand recommended by dentists worldwide Number of toothbrush heads included in this pack: 5